I have a WPF intranet app running in Trusted mode (local only).
I would like the users to be able to upload an image and attach it to an article on my newsletters section. I am having trouble deciding where these images will be stored.
Please provide me with your opinions.
At present I have a few ideas myself;
I could have an aspx page that runs parallel to this app, and run this inside a browser(I-frame). This page could then handle the upload and display of the image.
I could also, have the users copy directly to a network share.
It seems that there should be a more elegant sollution that I am not aware of.
Any ideas?
Don't force the solution towards ASPX just because you know how to do it there. It's unnatural to build a page, host browser to show that page etc, just so you could upload an image.
It's actually quite simpler to do it in a desktop client than on web page. You have a "Load File Dialog" - use that to get to the filepath the user wants to upload, and when you have that you can either:
copy it (inside your application) to your share,
or if you have a service - send it through some method call,
or you can even store it inside a database (recommended if the files are small)
There's really lots of options here... it depends if your client has connection to db, do you have service in between, etc...
Related
i am currently working on a issue where i need to get location of the file downloaded.First let me explain the scenario.
I placed a link in my page and when user clicks the link it shows file download dialog with open/save/cancel options in IE.Now when the user clicks on the save button and choose a location to save the file i need to get that file saved location using whatever options possible.
Thanks!
I do not think you can... at least not easy. This runs on the client, and for security reasons you can not acces the client's filesystem with javascript.
Maybe it is however possible using a flash or silverlight plugin, as the user can allow access from within these applications to the local filesystem. It might be very difficult tho...
The browser will not allow you to access information about the clients filesystem.
I'm trying to send a PDF file from a WCF to silverlight client. PDF is generated by DevExpress XtraReports (in method XtraReport CreateReport(string reportTypeName, RootGenericReportParameterContainer reportInformation)).
Acually PDF is saved somewhere on clients computer after choosing save path in file save dialog - DevExpress takes care of everything - but I don't have a clue how to open the PDF in new tab in browser.
And here is another problem. Silverlight 4 has no access to local file system right? So information about local PDF location is useless. Maybe it would be better to save the PDF in WCF and send a link to it to the client - but how?
I would first question why you need to send the file to the Silverlight client. Get rid of that requirement and the solution becomes much simpler. Silverlight can provide a link that opens a new browser tab. That link would be handled by the web domain, processing it as an HttpHandler, generating the PDF file for the browser. Your PDF url doesn't have to reference a physical file, you can still generate it on request, handle querystring values, etc... Lots of different ways to do this.
Seems that the question isn't really about DevExpress or Silverlight - you're just looking to open a [document of some kind] in a new tab. Each browser natively handles things differently, and users can change tab handling to whatever they want. And (as you mentioned) once the user has downloaded the file, you no longer control it.
Your best bet (and the way I do it) is probably to have a link pointing to a handler/file using "target='_blank' " in the anchor tag on the webpage. From the server side, you would want to set the "Content-Disposition" header to "Inline" to indicate to the browser that the document should be displayed in place instead of downloaded ("Attachment").
Is it possible to have a mobile website that can still function if there's no internet connection?
The user should still be able to use the website (if he has visited that page before), see the data (that was loaded before), add new stuff (cache locally).
When internet connection comes back online, all changed local data should be pushed online.
This should be a complete webbased solution, not a native app.
You should have a look at HTML5 offline storage, see http://diveintohtml5.ep.io/offline.html and the Offline Web Applications spec as a start. There are also quite a few posts here on SO.
Bookmarklets work when a user is offline. The trick with a bookmarklet is that it's entirely self contained javascript wrapped up in such a way that it can live within the bookmark itself. E.g. a javacsript: URL. You can also have a data: URL as a bookmark, which could be a complete HTML page. Usually these are base64 encoded with a mime type.
Probably what I'd do would be have a small base page as data:text/html,base64 which contained whatever offline content you cared about, but periodically tried to bootstrap the rest of the "real" content from wherever you host it.
I'm developing a Windows Application in C sharp.using a Web Browser control to Login to the Https Site and Download the List of files. I'm able to login in to the Site and I'm able to Navigate to the Page where files are listed to be downloaded. When I try Downloading the file using the file URL and trying to Navigate using Web Browser Control a Pop - Up appears asking whether to Open or Save or cancel. How to handle this Pop up and I'm stuck here.
Any Answers are appreciated.
Thanks,
Vinay.
If all you are trying to do is download a file, you might be better off using webRequest.Create("Url") instead of the WebBrowser control. There are ways of handling authentication depending on the method the website uses.
It's best not to use the WebBrowser to download files (unless initiated by the user, who can click the save button). Instead, you can use a WebRequest to download the files from your application.
Since you said you have to log in to the website, I'm going to assume that it uses the popular method of using cookies (as opposed to HTTP Basic Auth). To get the cookies from the WebBrowser, you can use the Cookie property of the WebBrowser's Document property.
I have a news letter which i did in silverlight, is there a way to send it in email. like as you include html tags, is there a way to include silverlight xap package in it.
Probably better to reference a webpage containing your silverlight content.
Technically, you could put the path to the .xap hosted on a website into an HTML email body, but nearly all mail clients will not display this - most even prevent images from loading by default.
Most email systems will prevent you from embedding active content like SilverLight, as it presents a security risk. Your only option probably is to put your SilverLight app on the web, and just email a link to it.
Don't if you want your newsletter to be read by anyone. See this article for a good list of do's and don'ts when sending emails.
Don't listen to those guys, they're probably FlashHeads... ;)
Besides that they give up too easily. More power to ya!
I assume this newsletter is for an audence that specifically desires your content: i.e a club or similar organization that doesn't have a windows based webserver.
What you do is attach the file in such a way that they drag a zip containing the files that would normally be served from a website to the hard drive - right click - extract all then they run it by clicking on an HTML file with .htm extension that hosts the silverlight plugin instead of an aspx file.
One note that probably won't matter to you is that without a server backing this up the content can't really send you back any info but it CAN get dynamic info that comes from say RSS feeds or WCF services hosted on the web.